40V 6.5Ah Replacement for Ryobi 40V Battery and Charger Kit Compatible with Ryobi Battery 40 Volt OP4026 OP40601 OP4050A OP4040 OP4030 OP4050 with OP401 40 Volt Charger

What It Is

This is an aftermarket 40V 6.5Ah lithium-ion battery compatible with Ryobi 40V lawn mowers, trimmers, blowers, and other outdoor power tools that use the OP40-series battery platform. It replaces OEM models like OP4026, OP40601, OP4050A, OP4040, OP4030, and OP4050, and works with the OP401 charger.

Fitment & Compatibility

• Check your tool’s voltage: Only for 40V Ryobi tools (not 18V or 36V).
• Verify battery model: Compatible with OP4026, OP40601, OP4050A, OP4040, OP4030, OP4050. If your tool uses a different Ryobi 40V battery (e.g., OP40401), it should still fit, but confirm physical shape and terminal layout.
• Charger: Works with the OP401 charger. If you have a different Ryobi 40V charger (e.g., OP4080), test fit—some aftermarket batteries have slightly different contact alignment.
• Physical dimensions: Same footprint as OEM, but height may vary by ~0.5”. Measure your battery compartment depth if using in a mower with a tight cover.
• Deck size irrelevant: This is a battery, not a blade or deck part—no deck measurement needed.

Key Things to Know

• Aftermarket quality: Likely uses lower-grade cells than OEM Ryobi. Capacity (6.5Ah) is higher than most OEM 40V batteries (typically 4.0–5.0Ah), but real-world runtime may be closer to 5.0Ah due to cell efficiency.
• Installation: Slide in like OEM—no tools required. Ensure latch clicks firmly; some aftermarket batteries have looser tolerances.
• Charging time: With OP401 charger, expect 2–3 hours for full charge (similar to OEM).
• Warranty: Typically 1 year (vs. 3 years on genuine Ryobi). Check seller’s return policy for dead-on-arrival units.

Should You Buy It

Buy this if you need a spare or replacement battery for light-to-medium yard work (e.g., mowing a small lawn, trimming edges) and want to save 30–40% vs. OEM. Skip it if you demand maximum runtime, long-term reliability, or have a high-draw tool (e.g., a large mower with thick grass)—stick with genuine Ryobi for consistent performance and warranty.